Sanding Paint Off Concrete Wall

If some of the paint has already begun to chip or peel.

Sanding paint off concrete wall.

Press the grinder. When you set out to remove paint from concrete the first. Examine the concrete floor to ensure you have removed any paints stains or other coatings. If you applied a membrane much of the paint will come off when you remove it but you ll still have to scrape and scrub.

Attach a diamond sanding pad to a hand held grinder. After the first pass go over the floor with a fine or superfine sandpaper disc to finish the surface. Clean a small area of the wall with warm water and detergent. Repeat sanding as necessary until the sanding is complete.

If paint comes off on the rag the old paint is latex. Scrape peeled or chipped areas and apply paint stripper. Remove the soap residue by rinsing the walls with a sponge and. A diamond pad is the only type strong enough to cut through.

Scuff sanding not only helps remove the old product but it gives the concrete surface a slightly rough texture. In this video i use an angle grinder with a diamond wheel and dust collection to remove old floor paint from a concrete porch. The most common way to remove paint is by scraping it off and the same is true for concrete walls. How to sand concrete walls step 1.

Clean the concrete surface thoroughly and let dry. Dry the area with a towel. Wash the walls with dishwashing soap and water. Use a degreasing cleaner and a scrub brush with water to remove any dirt and grease from the concrete floor.

Sand off any splatter residue lumps or uneven areas on the concrete floor. Scrub mortar joints and stubborn paint patches with a wire brush. Be cautious when using course grit sandpaper because it can seriously damage the underlying surface and create large score marks in the softer materials such as wood if you end up using the sander exercise caution follow the product instructions and wear protective gear. Coarse sandpaper would also be useful if you wanted to take the paint off only a doorframe or trim and leave the walls covered.

Collect the paint residue and put it in contractor bags for disposal. Hardened residue may require a scraper. Clean the area of dust with a broom and dustpan after finishing. Before starting lay a cloth on the floor beneath the area you will be working on so that the flaking paint can be easily removed later on.

Dip a rag in alcohol and rub over the area. Then wipe the wall with a soft cloth to remove any loose paint or dirt before starting. Peel the membrane if you used one and scrape off the paint using a paint scraper.